Added resources about the event loop in the nodejs file. (dipakkr#983)

Nodejs.md

@@ -4,18 +4,20 @@
 
 1.  [Understand Nodejs](#1-understand-nodejs)
 
-     - [Not to miss the official docs](https://nodejs.org/api/)
-     - [What is nodejs - FreeCodecamp](https://medium.freecodecamp.org/what-exactly-is-node-js-ae36e97449f5)
-     - [Node.js V8 internals: an illustrative primer](https://codeburst.io/node-js-v8-internals-an-illustrative-primer-83766e983bf6)
-     - [What you should know to really understand the Node.js Event Loop](https://medium.com/the-node-js-collection/what-you-should-know-to-really-understand-the-node-js-event-loop-and-its-metrics-c4907b19da4c)
-     - [Nodeschool](https://nodeschool.io/)
+    - [Not to miss the official docs](https://nodejs.org/api/)
+    - [What is nodejs - FreeCodecamp](https://medium.freecodecamp.org/what-exactly-is-node-js-ae36e97449f5)
+    - [Node.js V8 internals: an illustrative primer](https://codeburst.io/node-js-v8-internals-an-illustrative-primer-83766e983bf6)
+    - [What you should know to really understand the Node.js Event Loop](https://medium.com/the-node-js-collection/what-you-should-know-to-really-understand-the-node-js-event-loop-and-its-metrics-c4907b19da4c)
+    - [Nodeschool](https://nodeschool.io/)
 
+2)  [Event Loop](#2-event-loop)
 
-2.  [Event Loop](#2-event-loop)
+    - [Philip Roberts: What the heck is the event loop anyway? | JSConf EU](https://www.youtube.com/watch?v=8aGhZQkoFbQ)
+    - [Event Loop series - Part 1](https://jsblog.insiderattack.net/event-loop-and-the-big-picture-nodejs-event-loop-part-1-1cb67a182810) - \*Great read for understanding nodejs with practical examples
+    - [Jake Archibald: In The Loop - JSConf.Asia 2018](https://www.youtube.com/watch?v=cCOL7MC4Pl0) - Video explaining what the even loop is.
+    - [Loupe](http://latentflip.com/loupe) - Loupe is a little visualisation to help you understand how JavaScript's call stack/event loop/callback queue interact with each other.
 
-     - [Philip Roberts: What the heck is the event loop anyway? | JSConf EU](https://www.youtube.com/watch?v=8aGhZQkoFbQ)
-     - [Event Loop series - Part 1](https://jsblog.insiderattack.net/event-loop-and-the-big-picture-nodejs-event-loop-part-1-1cb67a182810) - *Great read for understanding nodejs with practical examples
+3)  [Tutorials](#3-tutorials)
 
-3.  [Tutorials](#3-tutorials)
- - [Node Oauth Implementation](https://www.sohamkamani.com/blog/javascript/2018-06-24-oauth-with-node-js/)
- - [Twitter Bot Tutorial - Node.js](https://www.youtube.com/playlist?list=PLRqwX-V7Uu6atTSxoRiVnSuOn6JHnq2yV)
+    - [Node Oauth Implementation](https://www.sohamkamani.com/blog/javascript/2018-06-24-oauth-with-node-js/)
+    - [Twitter Bot Tutorial - Node.js](https://www.youtube.com/playlist?list=PLRqwX-V7Uu6atTSxoRiVnSuOn6JHnq2yV)